Folding device and scooter

Abstract

The embodiment of the utility model relates to a folding device and a scooter. The folding device comprises a first part, a second part matched with one side of the first part and a locking part, the second part and the first part can rotate relatively, one of one side of the locking part and the other side of the first part is provided with an annular first boss, the other side of the locking part and the other side of the first part is provided with a first groove matched with the first boss, the first boss is provided with a highest protruding position, and the highest protruding position is provided with a second groove matched with the first groove. The highest convex position is higher than the rest positions of the first boss in the circumferential direction, the bottom face of the first groove is provided with the highest position, the highest position is higher than the rest positions of the first groove in the circumferential direction, and the locking piece and the first piece can rotate relatively in the first direction so that the highest position can abut against and be away from the highest convex position; the highest position abuts against the highest protruding position so that the second piece and the first piece can be locked mutually, and the highest position is away from the highest protruding position so that the second piece and the first piece can rotate relatively. The folding device provided by the embodiment of the utility model can improve the folding stability and reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a scooter technical field, concretely relates to a folding device and scooter. BACKGROUND

[0002] In order to reduce the storage size of scooter, folding device is arranged between the components of scooter to realize the folding of components. In the related art, folding device is folded through quick release pipe clamp clamping or pressing folding mode to fold the scooter.

[0003] However, the folding stability and reliability of the folding device in the related art are low. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent. For this purpose, the embodiment of the utility model proposes a folding device, which can improve the folding stability and reliability.

[0005] The utility model embodiment further proposes a scooter.

[0006] The folding device of the utility model embodiment, including: first piece;Second piece, one side of the second piece is matched with the first piece, and the second piece and the first piece are relatively rotatable;Locking piece, one of the other side of the locking piece and the first piece has annular first boss, the first boss has the highest convex position, the height of the highest convex position is greater than the height of the rest position on the circumference of the first boss, the other one of the other side of the locking piece and the first piece has the first recess that can cooperate with the first boss, the bottom surface of the first recess has the highest position, the height of the highest position is greater than the height of the rest position on the circumference of the first recess, the locking piece and the first piece can be relatively rotated around the first direction to make the highest position and the highest convex position abut and away, the highest position and the highest convex position abut to make the second piece and the first piece lock each other, and the highest position and the highest convex position away to make the second piece relatively rotate with the first piece.

[0007] The folding device of the utility model embodiment, one of the other side of the locking piece and the first piece has annular first boss, and the other one has the first recess that can cooperate with the first boss, and the locking piece and the first piece can be relatively rotated around the first direction, so that the second piece and the first piece relatively rotate when the highest convex position of the first boss and the highest position of the bottom surface of the first recess are away, and then folding is realized, the second piece and the first piece lock each other when the highest convex position of the first boss and the highest position of the bottom surface of the first recess abut, because the locking piece and the first piece abut, the locking force is stable and reliable, and the folding stability and reliability are improved.

[0008] In some embodiments, the first protrusion comprises a tapered protrusion extending along the circumference thereof, a height of the tapered protrusion gradually changes along the circumference of the first protrusion, the highest protrusion is formed at one end of the tapered protrusion, and a bottom surface of the first groove comprises a tapered surface extending along the circumference thereof, a depth of the tapered surface gradually changes along the circumference of the first groove, and the tapered surface is cooperable with the tapered protrusion, the highest position being formed at one end of the tapered surface.

[0009] In some embodiments, the tapered protrusion is a plurality of, the plurality of tapered protrusions being arranged at intervals along the circumference of the first protrusion, the tapered surface is a plurality of, the plurality of tapered surfaces being arranged at intervals along the circumference of the first groove, and the plurality of tapered surfaces and the plurality of tapered protrusions correspond to each other.

[0010] In some embodiments, the first protrusion further comprises a flat protrusion extending along the circumference thereof, a height of the flat protrusion being consistent along the circumference of the first protrusion, the flat protrusion being connected to the other end of the tapered protrusion, and a bottom surface of the first groove further comprises a flat surface, a height of the flat surface being consistent along the circumference of the first groove, the flat surface being connected to the other end of the tapered surface.

[0011] In some embodiments, the first protrusion is provided with a first annular groove towards a side surface of a bottom surface of the first groove, the bottom surface of the first groove is provided with a second annular groove towards a side surface of the first protrusion, the first annular groove divides the tapered protrusion into a first tapered protrusion segment and a second tapered protrusion segment arranged at intervals along a radial direction of the first protrusion, and the second annular groove divides the tapered surface into a first tapered surface and a second tapered surface arranged at intervals along a radial direction of the first groove.

[0012] In some embodiments, the folding device further comprises an elastic member abutting between the first member and the locking member and having an elastic force pushing the locking member towards a side away from the second member.

[0013] In some embodiments, the bottom surface of the first groove has a blind hole, one of a side of the locking member and the other side of the first member further has a protruding column, the first protrusion is arranged around the protruding column and spaced from the protruding column to form an annular space, and the protruding column is cooperable in the blind hole.

[0014] In some embodiments, the highest protrusion is a plurality of, the plurality of highest protrusions being arranged at intervals along the circumference of the first protrusion, the highest position is a plurality of, the plurality of highest positions being arranged at intervals along the circumference of the first groove, and the plurality of highest positions and the plurality of highest protrusions correspond to each other.

[0015] In some embodiments, one of the second piece and one side of the first piece has a ring-shaped second boss, the other of the second piece and one side of the first piece has a second groove matched with the second boss, the first concave-convex part is arranged on an end surface of the second boss facing the second groove, and the second concave-convex part is arranged on a bottom surface of the second groove.

[0016] In some embodiments, the first concave-convex part and the second concave-convex part are both wave-shaped, and the wave shape extends around the circumference of the second boss; or the first concave-convex part and the second concave-convex part both include a plurality of spaced-apart protrusions, and the protrusions are trapezoidal on a projection plane orthogonal to the end surface of the second boss facing the second groove.

[0017] In some embodiments, the folding device further includes an adjusting screw and a fastener, one end of the adjusting screw is connected to the fastener in sequence through the locking piece, the first piece, and the second piece.

[0018] In some embodiments, the first piece is a fixed piece, the second piece is a rotating piece, the second piece is rotatable relative to the first piece, and the locking piece is rotatable relative to the first piece.

[0019] The scooter of the embodiment of the utility model, because including the folding assembly of the above embodiment, improves the folding stability and reliability of the scooter.

[0020] The scooter of the embodiment of the utility model, because including the folding assembly of the above embodiment, improves the folding stability and reliability of the scooter.

[0021] In some embodiments, the scooter is a balance car, and the folding device is used for folding a control rod of the balance car.

[0022] In some embodiments, the control rod includes a first pipe and a second pipe, the first pipe is connected to the first piece, and the second pipe is connected to the second piece. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 FIG. 1 is a schematic view of a folding device according to an embodiment of the utility model.

[0024] Figure 2 FIG. 2 is an exploded schematic view of the folding device according to the embodiment of the utility model.

[0025] Figure 3 FIG. 3 is a sectional view of the folding device according to the embodiment of the utility model.

[0026] Figure 4 FIG. 4 is a schematic view of a first piece according to the embodiment of the utility model.

[0027] Figure 5 This is a schematic diagram of the locking component according to an embodiment of the present utility model.

[0028] Figure 6 This is a schematic diagram of the second part of an embodiment of this utility model.

[0029] Figure 7 This is a schematic diagram of the second boss in an embodiment of the present invention.

[0030] Figure label:

[0031] Fixed tube 100, rotating tube 200, folding device 300,

[0032] Second component 1, second groove 11, second protrusion / contour 111, slot 12, limiting groove 13, second cylindrical portion 14, second extension portion 15.

[0033] The first component 2, the first groove 21, the highest position 211, the gradient surface 212, the first gradient surface 2121, the second gradient surface 2122, the flat surface 213, the blind hole 214, and the second annular groove 22.

[0034] Second boss 23, first concave-convex portion 231, limiting member 24, first cylindrical portion 25, first extension portion 26

[0035] Locking component 3, first boss 31, highest protrusion 311, gradient protrusion 312, first gradient protrusion segment 3121, second gradient protrusion segment 3122, straight protrusion 313, first annular groove 32, protrusion 33, disc portion 34, third extension portion 35.

[0036] 4. Elastic element, 5. Adjusting screw, 6. Fastener, 7. Washer. Detailed Implementation

[0037] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0038] The following is a reference appendix. Figures 1 to 7 The folding device 300 of this utility model is described in an embodiment.

[0039] like Figures 1 to 7As shown, the folding device 300 of the embodiment of the utility model, including first piece 2, second piece 1 and locking piece 3. Second piece 1 and the one side cooperation of first piece 2, second piece 1 and first piece 2 can relatively rotate. The one of the other side of locking piece 3 and first piece 2 has annular first boss 31, first boss 31 has the highest convex position 311, the height of highest convex position 311 is greater than the height of the remaining position of the circumference of first boss 31, the other of the other side of locking piece 3 and first piece 2 has the first recess 21 that can cooperate with first boss 31, the bottom surface of first recess 21 has the highest position 211, the height of highest position 211 is greater than the height of the remaining position of the circumference of first recess 21. Locking piece 3 and first piece 2 can relatively rotate around the first direction (such as Figure 2 The left and right direction) to make highest position 211 and highest convex position 311 abut and away, highest position 211 and highest convex position 311 abut to make second piece 1 and first piece 2 lock each other, highest position 211 and highest convex position 311 away to make second piece 1 and first piece 2 relatively rotate.

[0040] The one of the other side of locking piece 3 and first piece 2 of the folding device 300 of the embodiment of the utility model has annular first boss 31, the other has the first recess 21 that can cooperate with first boss 31, by locking piece 3 and first piece 2 can relatively rotate around the first direction, to when highest convex position 311 of first boss 31 and the highest position 211 of the bottom surface of first recess 21 away, second piece 1 and first piece 2 relatively rotate, and then realize folding, when highest convex position 311 of first boss 31 and the highest position 211 of the bottom surface of first recess 21 abut, second piece 1 and first piece 2 lock each other, because locking piece 3 and first piece 2 abut, locking force is stable and reliable, improve folding stability and reliability.

[0041] Specifically, as shown, Figures 1 to 5 The second piece 1 and the first piece 2 are coaxially arranged, the right side of the second piece 1 is matched with the left side of the first piece 2 and is connected with the locking piece 3, and the second piece 1 and the first piece 2 can relatively rotate, including that the second piece 1 can rotate relative to the first piece 2, or the first piece 2 can rotate relative to the second piece 1.

[0042] The locking piece 3 is coaxially arranged with the first piece 2 and is located at the right side of the first piece 2, one of the right side of the first piece 2 and the left side of the locking piece 3 has an annular first boss 31, and the other has a first recess 21 matched with the first boss 31. It can be understood that the left side of the locking piece 3 has the first boss 31, and the right side of the first piece 2 has the first recess 21; or the right side of the locking piece 3 has the first recess 21, and the right side of the first piece 2 has the first boss 31.

[0043] The relative rotation of the locking piece 3 and the first piece 2 around the first direction includes: the locking piece 3 rotates relative to the first piece 2 around the first direction to make the highest position 211 abut against and away from the highest convex position 311; or the first piece 2 rotates relative to the locking piece 3 around the first direction to make the highest position 211 abut against and away from the highest convex position 311.

[0044] For ease of description, the second piece 1 rotates relative to the first piece 2, the locking piece 3 rotates relative to the first piece 2 around the first direction, and the left side of the locking piece 3 has the first boss 31, and the right side of the first piece 2 has the first groove 21 in the embodiment as an example. When the locking piece 3 rotates clockwise relative to the first piece 2 around the left-right direction, the highest convex position 311 of the first boss 31 gradually moves along the circumference of the first boss 31 to move away from the highest position 211 of the bottom surface of the first groove 21, so that the highest convex position 311 of the locking piece 3 is away from the highest position 211, and the second piece 1 is rotatable relative to the first piece 2.

[0045] When the locking piece 3 rotates counterclockwise relative to the first piece 2 around the left-right direction, the highest convex position 311 of the first boss 31 gradually moves along the circumference of the first boss 31 to abut against the highest position 211 of the bottom surface of the first groove 21, so that the locking piece 3 gradually moves to the right and drives the second piece 1 to move to the right, and the second piece 1 and the first piece 2 are locked to each other.

[0046] Optionally, as shown in Figure 2 The locking piece 3 includes a disc portion 34 and a third extension portion 35 extending outward from the outer circumferential surface of the disc portion 34, the left side of the disc portion 34 is provided with the first boss 31, and the third extension portion 35 forms a handle to facilitate rotation of the locking piece 3.

[0047] In some embodiments, the first boss 31 includes a gradient convex portion 312 extending along the circumference thereof, the height of the gradient convex portion 312 gradually changes along the circumference of the first boss 31, the highest convex position 311 is formed at one end of the gradient convex portion 312, the bottom surface of the first groove 21 includes a gradient surface 212 extending along the circumference thereof, the depth of the gradient surface 212 gradually changes along the circumference of the first groove 21, and the gradient surface 212 cooperates with the gradient convex portion 312, and the highest position 211 is formed at one end of the gradient surface 212.

[0048] Specifically, as shown in Figure 4 and Figure 5As shown in

[0049] In some embodiments, as shown in Figure 4 and Figure 5 As shown in

[0050] In some embodiments, the first boss 31 further comprises a flat convex portion 313 extending along the circumference thereof, the height of the flat convex portion 313 is consistent along the circumference of the first boss 31, the flat convex portion 313 is connected to the other end of the gradient convex portion 312, and the bottom surface of the first groove 21 further comprises a flat surface 213, the height of the flat surface 213 is consistent along the circumference of the first groove 21, and the flat surface 213 is connected to the other end of the gradient surface 212.

[0051] Specifically, as shown in Figure 4 and Figure 5 As shown in

[0052] Optionally, when the gradient convex portion 312 is a plurality of, the flat convex portion 313 is a plurality of, and the flat convex portion 313 is located between adjacent two gradient convex portions 312; and when the gradient surface 212 is a plurality of, the flat surface 213 is a plurality of, and the flat surface 213 is located between adjacent two gradient surfaces 212.

[0053] In some embodiments, as shown in Figure 4 and Figure 5 As shown inAs shown, the first boss 31 is provided with a first annular groove 32 on the side facing the bottom surface of the first groove 21, and the bottom surface of the first groove 21 is provided with a second annular groove 22 on the side facing the first boss 31. The first annular groove 32 divides the gradual convex part 312 into a first gradual convex segment 3121 and a second gradual convex segment 3122 arranged along the radial direction of the first boss 31, and the second annular groove 22 divides the gradual surface 212 into a first gradual surface 2121 and a second gradual surface 2122 arranged along the radial direction of the first groove 21. By arranging the first gradual convex segment 3121 and the second gradual convex segment 3122, on the one hand, the contact area between the locking piece 3 and the first piece 2 can be reduced, and on the other hand, the friction between the locking piece 3 and the first piece 2 when the locking piece 3 rotates can be reduced, facilitating the rotation of the locking piece 3.

[0054] In some embodiments, the folding device 300 further comprises an elastic piece 4 abutting between the first piece 2 and the locking piece 3 and having an elastic force pushing the locking piece 3 towards the side away from the second piece 1.

[0055] Specifically, as shown, Figure 3 the left end of the elastic piece 4 abuts with the bottom end of the second annular groove 22, and the right end of the elastic piece 4 abuts with the bottom end of the first annular groove 32. By arranging the first annular groove 32 and the second annular groove 22, at least part of the elastic piece 4 is located in the first annular groove 32 and the second annular groove 22, facilitating the installation of the elastic piece 4 while improving the stability of the elastic piece 4.

[0056] When the second piece 1 and the first piece 2 are locked with each other, the elastic piece 4 is compressed to avoid the abutting space of the highest convex position 311 of the first boss 31 and the highest position 211 of the bottom surface of the first groove 21, and the locking piece 3 moves to the right to drive the second piece 1 to move to the right to be close to the first piece 2 and lock with the first piece 2.

[0057] When the second piece 1 and the first piece 2 rotate relative to each other, the highest convex position 311 of the first boss 31 and the highest position 211 of the bottom surface of the first groove 21 are separated, and the elastic piece 4 is stretched to separate the locking piece 3 from the first piece 2. Since the elastic piece 4 is in a stretched state and has a compressible space, the second piece 1 can compress the elastic piece 4 to rotate relative to the first piece 2, realizing the folding of the scooter.

[0058] In some embodiments, the bottom surface of the first groove 21 has a blind hole 214, one of the side of the locking piece 3 and the other side of the first piece 2 further has a convex column 33, the first boss 31 is arranged around the convex column 33 and spaced from the convex column 33 to form an annular space, and the convex column 33 can be fitted in the blind hole 214.

[0059] Specifically, as shown, Figures 4 to 5As shown, the left side of the locking piece 3 is provided with a protruding column 33, and the first boss 31 is arranged around the protruding column 33, and the height of the protruding column 33 is higher than the height of the highest protruding position 311 of the first boss 31. Through the cooperation of the protruding column 33 and the blind hole 214, the locking piece 3 is facilitated to be positioned, and the assembly precision of the locking piece 3 and the first piece 2 is improved.

[0060] In some embodiments, as shown in Figures 4 to 5 As shown, the highest protruding position 311 is a plurality of highest protruding positions 311, and the plurality of highest protruding positions 311 are arranged along the circumference of the first boss 31. The highest position 211 is a plurality of highest positions 211, and the plurality of highest positions 211 are arranged along the circumference of the first groove 21. The plurality of highest protruding positions 311 and the plurality of highest positions 211 correspond one by one. The plurality of highest protruding positions 311 and the plurality of highest positions 211 are arranged to facilitate the limiting of the rotation direction and the rotation angle of the locking piece 3, facilitate the operation, and the locking force of the locking piece 3 is uniform, and the reliability of the folding device 300 is improved.

[0061] In some embodiments, one of the second piece 1 and the first piece 2 has an annular second boss 23, and the other of the second piece 1 and the first piece 2 has a second groove 11 matched with the second boss 23. The end face of the second boss 23 towards the second groove 11 is provided with a first concave-convex part 231, and the bottom surface of the second groove 11 is provided with a second concave-convex part 111, and the second concave-convex part 111 is matched with the first concave-convex part 231.

[0062] Specifically, as shown in Figures 6 to 7 As shown, one of the second piece 1 and the first piece 2 has a second boss 23, and the other has a second groove 11. It can be understood that the second piece 1 has the second boss 23, and one end of the first piece 2 has the second groove 11; or the second piece 1 has the second groove 11, and one end of the first piece 2 has the second boss 23. In the embodiment, the left side of the first piece 2 has the second boss 23, and the second piece 1 has the second groove 11. The left end face of the second boss 23 is provided with the first concave-convex part 231. Through the meshing and separation of the second concave-convex part 111 and the first concave-convex part 231, the mutual locking or relative rotation of the second piece 1 and the first piece 2 is realized.

[0063] Optionally, the left end face of the first piece 2 is provided with a limiting piece 24, and the bottom surface of the second groove 11 of the second piece 1 is provided with a limiting groove 13. The limiting piece 24 is matched in the limiting groove 13 to limit the rotation angle of the second piece 1.

[0064] The utility model discloses the highest convex position 311 of first boss 31 and the highest position 211 of the bottom of first recess 21 are abutted and away from each other, so that the second recess and convex part 111 of second piece 1 can be engaged and separated with the first recess and convex part 231 on first piece 2, and then the second piece 1 and first piece 2 are locked or relatively rotated with each other, the processing precision of folding device 300 is reduced, and the elastic force of locking piece 3 is always given to the right through elastic member 4, so that the stability and reliability of folding device 300 are improved.

[0065] Optionally, as shown in the figure, Figure 2 The first piece 2 includes a first cylindrical part 25 and a first extension part 26 extending outward from the outer circumferential surface of the first cylindrical part 25, the right end of the first cylindrical part 25 is provided with the first recess 21, the left end of the first cylindrical part 25 is provided with the second boss 23, and the first extension part 26 is matched with the fixed pipe 100.

[0066] Optionally, as shown in the figure, Figure 2 The second piece 1 includes a second cylindrical part 14 and a second extension part 15 extending outward from the outer circumferential surface of the second cylindrical part 14, the right end of the second cylindrical part 14 is provided with the second recess 11, and the second extension part 15 is matched with the rotating pipe 200.

[0067] In some embodiments, as shown in the figure, Figures 6 to 7 The first recess and convex part 231 and the second recess and convex part 111 are both in a wave shape, and the wave shape extends around the circumference of the second boss 23. By setting the first recess and convex part 231 and the second recess and convex part 111 in a wave shape, on the one hand, it can be ensured that the second piece 1 and the first piece 2 are not easy to loosen when locked with each other, and the locking reliability is improved, and on the other hand, when the second piece 1 and the first piece 2 are relatively rotated, the second piece 1 will not be deflected when not subjected to external force, and the second piece 1 will smoothly rotate when subjected to external force.

[0068] In some embodiments, the first recess and convex part 231 and the second recess and convex part 111 both include a plurality of spaced-apart protrusions, and the protrusions are in a trapezoidal shape on a projection plane orthogonal to the end face of the second recess 11 facing the second boss 23. By setting the protrusions in a trapezoidal shape, the engagement and separation of the second piece 1 and the first piece 2 can be realized while reducing the manufacturing difficulty.

[0069] In some embodiments, the folding device 300 further includes an adjusting screw 5 and a fastener 6, one end of the adjusting screw 5 passes through the locking piece 3, the first piece 2, the second piece 1 and is connected with the fastener 6 in sequence.

[0070] Specifically, as shown in the figure, Figure 2As shown, the folding device 300 further comprises a gasket 7, the left end of the adjusting screw 5 is connected to the fastener 6 in sequence through the gasket 7, the locking piece 3, the first piece 2 and the second piece 1, and the connection between the locking piece 3 and the second piece 1 is realized by the setting of the adjusting screw 5, which facilitates the movement of the second piece 1 driven by the locking piece 3.

[0071] Optionally, when the second piece 1 and the first piece 2 can rotate relative to each other, the tightness between the second piece 1 and the first piece 2 after locking can be adjusted by rotating the adjusting screw 5, thereby avoiding the phenomenon of insufficient locking force caused by wear after long-term use of the folding device 300, and improving the locking reliability.

[0072] Optionally, the left end surface of the second piece 1 is provided with a notch 12, and at least part of the fastener 6 is hidden in the notch 12, thereby improving the overall coordination of the folding device 300.

[0073] For example, the fastener 6 is threadedly connected with the adjusting screw 5.

[0074] In some embodiments, the first piece 2 is a fixed piece, the second piece 1 is a rotating piece, the second piece 1 is rotatable relative to the first piece 2, and the locking piece 3 is rotatable relative to the first piece 1, thereby facilitating the assembly of the first piece 2, the second piece 1 and the locking piece 3.

[0075] The scooter of the embodiment of the utility model comprises the folding device 300 of any one of the above embodiments.

[0076] The scooter of the embodiment of the utility model comprises the folding assembly of the above embodiment, thereby improving the folding stability and reliability of the scooter.

[0077] In some embodiments, as shown in the drawings, Figure 1 As shown, the scooter is a balance car, and the balance car comprises a control rod, and the folding device is used for folding the control rod. By mounting the folding device on the leg control rod of the balance car, the folding of the leg control rod is facilitated.

[0078] In some embodiments, as shown in the drawings, Figure 1 As shown, the control rod comprises a first pipe piece and a second pipe piece, the first pipe piece is connected with the first piece, and the second pipe piece is connected with the second piece, wherein the first pipe piece forms a fixed pipe 100, the second pipe piece forms a rotating pipe 200, the fixed pipe 100 is connected with the first piece 2, and the rotating pipe 200 is connected with the second piece 1 so that the rotating pipe 200 is rotatable relative to the fixed pipe 100, thereby realizing the folding of the control rod.

[0079] Optionally, when the highest convex position 311 abuts against the highest position 211, that is, when the second piece 1 and the first piece 2 are locked with each other, the handle extends along the extension direction of the fixed pipe 100, so that even if the handle is long, the handle can also be attached to the fixed pipe 100, thereby improving the overall coordination of the scooter.

[0080] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0081] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0082] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0083] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0084] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0085] It can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A folding device, characterized in that, The utility model relates to a locking mechanism, comprising: a first piece; a second piece, which cooperates with one side of the first piece and is rotatable relative to the first piece; a locking piece, one side of the locking piece and the other side of the first piece have a first annular boss, the first annular boss has a highest convex position, the height of the highest convex position is greater than the height of the remaining positions in the circumferential direction of the first annular boss, the other side of the locking piece and the other side of the first piece have a first groove that can cooperate with the first annular boss, the bottom surface of the first groove has a highest position, the height of the highest position is greater than the height of the remaining positions in the circumferential direction of the first groove, the locking piece and the first piece are rotatable relative to each other in a first direction to make the highest position and the highest convex position abut and move away from each other, the highest position and the highest convex position abut to lock the second piece and the first piece relative to each other, and the highest position and the highest convex position move away from each other to make the second piece and the first piece rotatable relative to each other.

2. The folding device of claim 1, wherein The first annular boss comprises a gradual convex part extending in the circumferential direction of the first annular boss, the height of the gradual convex part gradually changes in the circumferential direction of the first annular boss, and the highest convex position is formed at one end of the gradual convex part, the bottom surface of the first groove comprises a gradual surface extending in the circumferential direction of the first groove, the depth of the gradual surface gradually changes in the circumferential direction of the first groove, and the gradual surface can cooperate with the gradual convex part, and the highest position is formed at one end of the gradual surface.

3. The folding device of claim 2, wherein The gradual convex part is in plurality, the gradual convex parts are arranged at intervals in the circumferential direction of the first annular boss, the gradual surface is in plurality, the gradual surfaces are arranged at intervals in the circumferential direction of the first groove, and the gradual surfaces and the gradual convex parts correspond to each other in one-to-one manner.

4. The folding device of claim 2, wherein The first annular boss further comprises a flat convex part extending in the circumferential direction of the first annular boss, the height of the flat convex part is uniform in the circumferential direction of the first annular boss, and the flat convex part is connected to the other end of the gradual convex part, the bottom surface of the first groove further comprises a flat surface, the height of the flat surface is uniform in the circumferential direction of the first groove, and the flat surface is connected to the other end of the gradual surface.

5. The folding apparatus of claim 2, wherein The first annular boss is provided with a first annular groove on the side facing the bottom surface of the first groove, the bottom surface of the first groove is provided with a second annular groove on the side facing the first annular boss, the first annular groove divides the gradual convex part into a first gradual convex segment and a second gradual convex segment arranged at intervals in the radial direction of the first annular boss, and the second annular groove divides the gradual surface into a first gradual surface and a second gradual surface arranged at intervals in the radial direction of the first groove.

6. The folding device of claim 5, wherein Further comprising an elastic piece, which abuts between the first piece and the locking piece and has an elastic force to push the locking piece towards the side away from the second piece.

7. The folding apparatus of claim 1, wherein The bottom surface of the first groove has a blind hole, one side of the locking piece and the other side of the first piece further have a convex column, the first annular boss is arranged around the convex column and spaced from the convex column to form an annular space, and the convex column can be fitted in the blind hole.

8. The folding apparatus of claim 1, wherein The highest convex positions are arranged along the circumference of the first convex post, and the highest positions are arranged along the circumference of the first concave groove, and the highest positions and the highest convex positions are in one-to-one correspondence.

9. The folding apparatus of claim 1, wherein One of the second piece and one side of the first piece has an annular second convex post, and the other of the second piece and one side of the first piece has a second concave groove matched with the second convex post, the first concave-convex part is arranged on the end face of the second convex post facing the second concave groove, and the second concave-convex part is arranged on the bottom surface of the second concave groove, and the second concave-convex part is matched with the first concave-convex part.

10. The folding device of claim 9, wherein, The first concave-convex part and the second concave-convex part are both wave-shaped, and the wave shape extends around the circumference of the second convex post; or The first concave-convex part and the second concave-convex part each include a plurality of spaced convexes, and the convexes are trapezoidal on a projection plane orthogonal to the end face of the second convex post facing the second concave groove.

11. The folding device according to any one of claims 1-10, characterized in that, Further comprising an adjusting screw and a fastener, one end of the adjusting screw is connected to the fastener in sequence through the locking piece, the first piece and the second piece.

12. The folding device according to any one of claims 1-10, characterized in that, The first piece is a fixed piece, the second piece is a rotating piece, the second piece is rotatable relative to the first piece, and the locking piece is rotatable relative to the first piece.

13. A scooter, characterized in that The folding device comprises the folding device according to any one of claims 1-12.

14. The scooter of claim 13, wherein, The scooter is a balance car, the balance car comprises a control rod, and the folding device is used for folding the control rod.

15. The scooter of claim 14, wherein, The control rod comprises a first pipe and a second pipe, the first pipe is connected to the first piece, and the second pipe is connected to the second piece. The control rod comprises a first pipe and a second pipe, the first pipe is connected to the first piece, and the second pipe is connected to the second piece.

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